Ping He
106Patents
16h-index
49Co-inventors
86Inventor score
Filing activity: May 31, 1985 → May 31, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7633625B1 | Spectroscopic ellipsometer and polarimeter systems | Physics | 108 | Active |
| US7616319B1 | Spectroscopic ellipsometer and polarimeter systems | Physics | 106 | Active |
| US5666201A | Multiple order dispersive optics system and method of use | Physics | 71 | Expired |
| US5963327A | Total internal reflection electromagnetic radiation beam entry to, and exit from, ellipsometer, polarimeter, reflectometer and the like systems | Physics | 61 | Expired |
| US6634233B2 | Method for determining the wall thickness and the speed of sound in a tube from reflected and transmitted ultrasound pulses | Physics | 51 | Expired |
| US6883376B2 | Method for determining the wall thickness and the speed of sound in a tube from reflected and transmitted ultrasound pulses | Physics | 47 | Expired |
| US6323424A | Multiple electrical box mounting system having removable rings | Electricity | 43 | Expired |
| US6098939A | Electrical junction box supporting bracket | Emerging Cross-Sectional Technologies | 41 | Expired |
| US6188022A | Electrical box mounting system having removable rings | Electricity | 35 | Expired |
| US6982792B1 | Spectrophotometer, ellipsometer, polarimeter and the like systems | Physics | 28 | Expired |
| US5805285A | Multiple order dispersive optics system and method of use | Physics | 25 | Expired |
| US4658827A | Ultrasound scanner for tissue characterization | Physics | 24 | Expired |
| US6293056A | Multi-purpose above-ceiling utility support system | Electricity | 22 | Expired |
| US6456376B1 | Rotating compensator ellipsometer system with spatial filter | Physics | 22 | Expired |
| US6859278B1 | Multi-AOI-system for easy changing angles-of-incidence in ellipsometer, polarimeter and reflectometer systems | Physics | 18 | Expired |
| US7760820B2 | Receiver having a signal reconstructing section for noise reduction, system and method thereof | Electricity | 16 | Expired |
| US7158231B1 | Spectroscopic ellipsometer and polarimeter systems | Physics | 16 | Expired |
| US7274450B1 | Sample entry purge system in spectrophotometer, ellipsometer, polarimeter and the like systems | Physics | 16 | Expired |
| US6804004B1 | Multiple-element lens systems and methods for uncorrelated evaluation of parameters in parameterized mathematical model equations for lens retardance, in ellipometry and polarimetry | Physics | 15 | Expired |
| US5969818A | Beam folding optics system and method of use with application in ellipsometry and polarimetry | Physics | 14 | Expired |
| US8886995B1 | Fault tolerant state machine for configuring software in a digital computer | Physics | 13 | Active |
| US7492455B1 | Discrete polarization state spectroscopic ellipsometer system and method of use | Physics | 12 | Active |
| US6549282B1 | Methods for uncorrelated evaluation of parameters in parameterized mathematical model equations for lens retardance, in ellipsometry and polarimetry systems | Physics | 12 | Expired |
| US7277171B1 | Flying mobile on-board ellipsometer, polarimeter, reflectometer and the like systems | Physics | 12 | Expired |
| US7505134B1 | Automated ellipsometer and the like systems | Physics | 11 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.